Method and apparatus for running applet

ABSTRACT

A method and an apparatus for running an applet are provided. The method includes: reading, in response to issuing an applet to a host application, a configuration file to determine a dynamic library referenced by the applet; loading the dynamic library referenced by the applet from a sandbox directory and/or an applet platform; and running, in response to a running instruction of the applet, a script code of the applet to call the dynamic library referenced by the applet. When the applet is run, the dynamic library referenced by the applet is loaded from the sandbox directory and/or the applet platform, and the dynamic library is no longer integrated into the applet package.

CROSS-REFERENCE TO RELATED APPLICATIONS

This application claims priority to Chinese Patent Application No.201911199931.8, filed on Nov. 29, 2019, titled “Method and Apparatus forRunning Applet,” which is hereby incorporated by reference in itsentirety.

TECHNICAL FIELD

Embodiments of the present disclosure relate to the field of computertechnology, and specifically to a method and an apparatus for running anapplet.

BACKGROUND

With the continuous development of computer technology, a variety ofapplications emerge one after another. An applet, an application thatcan be used without download and installation, has received extensiveattention from all walks of life.

A traditional applet requires developers to develop all service modulesand logics totally by themselves, and the development workload of theapplet is heavy. In order to reduce the burden on the applet developersand facilitate the development of the applet, some commonly used APIs(application programming interfaces), components, pages, and the like,may be encapsulated into plug-ins for a direct reference by otherapplets. If a certain applet is to reference a plug-in, in aconfiguration file, not only an identifier of the plug-in needs to beconfigured, but also a version of the plug-in needs to be configured. Inaddition, the plug-in also needs to be integrated into an appletpackage. When the applet is run, the plug-in integrated in the appletpackage is directly used. If some new features are added to the plug-inand a new version is issued, to use the new features in the applet, theversion of the plug-in in the configuration file must be manuallymodified to a latest version, and at the same time, the plug-in of thelatest version is integrated into the applet package, and then the newapplet package is submitted for review. After the new applet packagepasses the review, a period of time is further needed for convergence,and only after the convergence, when the applet is run, the user seesthe new features.

SUMMARY

Embodiments of the present disclosure propose a method and apparatus forrunning an applet.

In a first aspect, the embodiments of the present disclosure propose amethod for running an applet. The method includes: reading, in responseto issuing an applet to a host application, a configuration file todetermine a dynamic library referenced by the applet; loading thedynamic library referenced by the applet from a sandbox directory and/oran applet platform; and running, in response to a running instruction ofthe applet, a script code of the applet to call the dynamic libraryreferenced by the applet.

In some embodiments, before the configuration file is read to determinethe dynamic library referenced by the applet, the method furtherincludes performing a signing and a security verification on the applet.

In some embodiments, the loading the dynamic library referenced by theapplet from a sandbox directory and/or an applet platform includes:determining, for each dynamic library referenced by the applet, whetherthe dynamic library is stored in the sandbox directory; and downloadingsynchronously a dynamic library of a latest version from the appletplatform and loading the dynamic library of the latest version, if thedynamic library is not stored.

In some embodiments, the loading the dynamic library referenced by theapplet from a sandbox directory and/or an applet platform furtherincludes: determining whether a download duration of the dynamic libraryexceeds an expiration period, if the sandbox directory stores thedynamic library; and downloading synchronously the dynamic library ofthe latest version from the applet platform and loading the dynamiclibrary of the latest version, if the download duration exceeds theexpiration period.

In some embodiments, the loading the dynamic library referenced by theapplet from a sandbox directory and/or an applet platform furtherincludes: loading the dynamic library stored in the sandbox directory,if the download duration does not exceed the expiration period, or ifthe download duration exceeds the expiration period but the dynamiclibrary of the latest version fails to be downloaded.

In some embodiments, the loading the dynamic library referenced by theapplet from a sandbox directory and/or an applet platform furtherincludes: downloading asynchronously the dynamic library of the latestversion, if the download duration does not exceed the expiration periodand the dynamic library of the latest version is included in the appletplatform.

In some embodiments, the downloaded dynamic library of the latestversion is stored into the sandbox directory, a timeout time and versioninformation of the dynamic library are stored into a database, anddifferent applets share the dynamic library in the sandbox directory.

In some embodiments, the method further includes determining, when ascript code of a master page of the applet is run, a dynamic libraryreferenced by a slave page of the applet, and pre-downloading thedynamic library referenced by the slave page from the applet platform.

In some embodiments, the method further includes transmitting, whenjumping to the slave page of the applet, a path of the sandbox directoryto a front end, to cause the front end to preload the dynamic libraryreferenced by the page from the path.

In some embodiments, the dynamic library is issued by acquiring anidentifier of the dynamic library registered by a user on the appletplatform; acquiring a script, a component and a page developed by theuser using a development tool provided by the applet platform;encapsulating, if the script, the component and the page aresuccessfully compiled and debugged, the script, the component and thepage to obtain the dynamic library; and issuing simultaneously thedynamic library, an applet sample debugging the dynamic library and adocument of the dynamic library.

In some embodiments, the applet references the dynamic library by:configuring the identifier of the dynamic library referenced by theapplet in the configuration file; declaring a use component of thedynamic library referenced by the applet in a page file; specifying aposition and a related attribute of the dynamic library referenced bythe applet in a layout file; and calling the dynamic library referencedby the applet in the script code of the applet.

In a second aspect, the embodiments of the present disclosure propose anapparatus for running an applet. The apparatus includes a reading unit,configured to read, in response to issuing an applet to a hostapplication, a configuration file to determine a dynamic libraryreferenced by the applet; a loading unit, configured to load the dynamiclibrary referenced by the applet from a sandbox directory and/or anapplet platform; and a running unit, configured to run, in response to arunning instruction of the applet, a script code of the applet to callthe dynamic library referenced by the applet.

In some embodiments, the apparatus further includes a verifying unit,configured to perform a signing and a security verification on theapplet.

In some embodiments, the loading unit includes: a first determiningsubunit, configured to determine, for each dynamic library referenced bythe applet, whether the dynamic library is stored in the sandboxdirectory; and a first loading subunit, configured to synchronouslydownload a dynamic library of a latest version from the applet platformand load the dynamic library of the latest version, if the dynamiclibrary is not stored.

In some embodiments, the loading unit further includes: a seconddetermining subunit, configured to determine whether a download durationof the dynamic library exceeds an expiration period, if the sandboxdirectory stores the dynamic library; and a second loading subunit,configured to synchronously download the dynamic library of the latestversion from the applet platform and load the dynamic library of thelatest version, if the download duration exceeds the expiration period.

In some embodiments, the loading unit further includes: a third loadingsubunit, configured to load the dynamic library stored in the sandboxdirectory, if the download duration does not exceed the expirationperiod, or if the download duration exceeds the expiration period butthe dynamic library of the latest version fails to be downloaded.

In some embodiments, the loading unit further includes: anasynchronously downloading subunit, configured to asynchronouslydownload the dynamic library of the latest version, if the downloadduration does not exceed the expiration period and the dynamic libraryof the latest version is included in the applet platform.

In some embodiments, the downloaded dynamic library of the latestversion is stored into the sandbox directory, a timeout time and versioninformation of the dynamic library are stored into a database, anddifferent applets share the dynamic library in the sandbox directory.

In some embodiments, the apparatus further includes a pre-downloadingunit, configured to determine, when a script code of a master page ofthe applet is run, a dynamic library referenced by a slave page of theapplet, and pre-download the dynamic library referenced by the slavepage from the applet platform.

In some embodiments, the apparatus further includes a preloading unit,configured to transmit, when jumping to the slave page of the applet, apath of the sandbox directory to a front end to cause the front end topreload the dynamic library referenced by the detail page from the path.

In some embodiments, the dynamic library is issued by: acquiring anidentifier of the dynamic library registered by a user on the appletplatform; acquiring a script, a component and a page developed by theuser using a development tool provided by the applet platform;encapsulating, if the script, the component and the page aresuccessfully compiled and debugged, the script, the component and thepage to obtain the dynamic library; and issuing simultaneously thedynamic library, an applet sample debugging the dynamic library and adocument of the dynamic library.

In some embodiments, the applet references the dynamic library by:configuring the identifier of the dynamic library referenced by theapplet in the configuration file; declaring a use component of thedynamic library referenced by the applet in a page file; specifying aposition and a related attribute of the dynamic library referenced bythe applet in a layout file; and calling the dynamic library referencedby the applet in the script code of the applet.

In a third aspect, the embodiments of the present disclosure provide anelectronic device. The electronic device includes one or moreprocessors; and a storage apparatus, configured to store one or moreprograms, where the one or more programs, when executed by the one ormore processors, cause the one or more processors to implement themethod according to any embodiment of the first aspect.

In a fourth aspect, the embodiments of the present disclosure provide acomputer readable medium, storing a computer program, where the program,when executed by a processor, implements the method according to anyembodiment of the first aspect.

According to the method and apparatus for running an applet provided inthe embodiments of the present disclosure, first, the configuration fileis read to determine the dynamic library referenced by the applet, inresponse to issuing the applet to the host application. Then, thedynamic library referenced by the applet is loaded from the sandboxdirectory and/or the applet platform. Finally, the script code of theapplet is run to call the dynamic library referenced by the applet, inresponse to the running instruction of the applet. When the applet isrun, the dynamic library referenced by the applet is loaded from thesandbox directory and/or the applet platform, and the dynamic library isno longer integrated into the applet package. Even if new features areadded to the dynamic library referenced by the applet, it is notnecessary to integrate the dynamic library of the latest version intothe applet package. Since the code of the applet package does notchange, it is not necessary to re-review the applet package, thusgreatly improving the convergence rate. In addition, the dynamic libraryis no longer integrated into the applet package, and is also isolatedfrom the applet package in term of codes, thereby preventing thedeveloper from modifying the code of the dynamic library or leaking thecore implementation of the dynamic library.

BRIEF DESCRIPTION OF THE DRAWINGS

After reading detailed descriptions for non-limiting embodiments givenwith reference to the following accompanying drawings, other features,objectives and advantages of the present disclosure will be moreapparent:

FIG. 1 is an example system architecture in which the present disclosuremay be applied;

FIG. 2 is a flowchart of a method for running an applet according to anembodiment of the present disclosure;

FIG. 3 is a flowchart of a method for running an applet according toanother embodiment of the present disclosure;

FIG. 4 is a diagram of an architecture in which an applet runs;

FIG. 5 is a schematic structural diagram of an apparatus for running anapplet according to an embodiment of the present disclosure; and

FIG. 6 is a schematic structural diagram of a computer system adapted toimplement an electronic device according to embodiments of the presentdisclosure.

DETAILED DESCRIPTION OF EMBODIMENTS

The present disclosure is further described below in detail by combiningthe accompanying drawings and the embodiments. It may be appreciatedthat the specific embodiments described herein are merely used forexplaining the relevant invention, rather than limiting the invention.In addition, it should be noted that, for ease of description, onlyparts related to the relevant invention are shown in the accompanyingdrawings.

It should also be noted that the embodiments in the present disclosureand the features in the embodiments may be combined with each other on anon-conflict basis. The present disclosure will be described below indetail with reference to the accompanying drawings and in combinationwith the embodiments.

FIG. 1 illustrates an example system architecture 100 in which a methodfor running an applet or an apparatus for running an applet according toan embodiment of the present disclosure may be applied.

As shown in FIG. 1 , the system architecture 100 may include devices101, 102 and 103 and a network 104. The network 104 serves as a mediumproviding a communication link between the terminal devices 101, 102 and103. The network 104 may include various types of connections, forexample, wired or wireless communication links, or optical fiber cables.

The devices 101, 102 and 103 may be hardware devices or softwaresupporting a network connection to provide various network services.When being hardware, the devices may be various electronic devicesincluding, but not limited to, a smartphone, a tablet computer, a laptopportable computer, a desktop computer, a server, and the like. In thiscase, as the hardware devices, the devices may be implemented as adistributed device cluster composed of a plurality of devices, or may beimplemented as a single device. When being the software, the devices maybe installed in the above listed electronic devices. In this case, thedevices may be implemented as a plurality of pieces of software or aplurality of software modules (e.g., pieces of software or softwaremodules for providing a distributed service), or may be implemented as asingle piece of software or a single software module, which will not bespecifically defined here.

In practice, a device may provide a corresponding network service byinstalling a corresponding client application or a corresponding serverside application. After the client application is installed, the devicemay be embodied as a client in a network communication. Correspondingly,after the server-side application is installed, the device may beembodied as a server side in the network communication.

As an example, in FIG. 1 , the device 101 is embodied as a client andthe devices 102 and 103 are embodied as server sides. For example, thedevice 101 may be a client installed with a host application, the device102 may be a server side of the host application, and the device 103 maybe a server side of an applet.

It should be noted that the method for running an applet provided in theembodiments of the present disclosure is generally performed by thedevice 101. Correspondingly, the apparatus for running an applet isgenerally provided in the device 101.

It should be appreciated that the numbers of the networks and thedevices in FIG. 1 are merely illustrative. Any number of networks anddevices may be provided based on actual requirements.

Further referring to FIG. 2 , FIG. 2 illustrates a flow 200 of a methodfor running an applet according to and embodiment of the presentdisclosure. The method for running an applet includes the followingsteps.

Step 201 includes reading, in response to issuing an applet to a hostapplication, a configuration file to determine a dynamic libraryreferenced by the applet.

In this embodiment, when the applet is issued to the host application,an executing body (e.g., the device 101 shown in FIG. 1 ) of the methodfor running an applet may read the configuration file to determine thedynamic library referenced by the applet.

Here, for example, the host application may be a client application suchas an instant communication application and a search application. Theapplet may be an application program running in the host application.The running of the applet depends on the host application. The hostapplication may run a plurality of applets. Generally, if a user wantsto run the applet, the host application needs to be searched for theapplet. If the search result page includes the applet, the applet isissued to the host application.

Here, the configuration file may be app.json. Each applet corresponds toone configuration file, and the configuration file records theidentifier of the dynamic library referenced by the correspondingapplet. One applet may reference a plurality of different dynamiclibraries. A dynamic library may be obtained by encapsulating a script,a component, a page and the like, which are commonly and frequently usedin the development of the applet. The identifier of the dynamic librarymay be, for example, the name and/or the alias of the dynamic library.The name of the dynamic library is unique on an applet platform. Thealias of the dynamic library is unique in a given applet. In addition,the configuration file no longer records the version of the dynamiclibrary referenced by the applet. Therefore, even if the version isupdated due to a newly added feature of the dynamic library referencedby the applet, the latest version of the dynamic library referenced bythe applet does not need to be updated in the configuration file, and nonew applet package needs to be reviewed, thereby greatly improving theconvergence rate.

In some alternative implementations of this embodiment, the dynamiclibrary may be issued through the following steps:

First, the identifier of the dynamic library registered by the user onthe applet platform is acquired.

Generally, when developing a dynamic library, a developer needs toregister the identifier of the dynamic library on the applet platform.

Then, a script, a component and a page developed by the user using adevelopment tool provided by the applet platform are acquired.

Generally, the applet platform provides the development tool, and thedeveloper may use the development tool provided by the applet platformto develop the script (JS), the component, the page and the like, whichare commonly and frequently used.

Next, if the script, the component and the page are successfullycompiled and debugged, the script, the component and the page areencapsulated to obtain the dynamic library.

Generally, the script, the component, the page and the like need to becompiled and debugged. After being compiled and debugged, the script,the component, the page and the like are encapsulated into the dynamiclibrary. In addition, the dynamic library provides the API externally,and the applet implements the reference to the dynamic library bycalling the API of the dynamic library.

Finally, the dynamic library, an applet sample debugging the dynamiclibrary and a document of the dynamic library are issued simultaneously.

Generally, for issuing the dynamic library, it is required to providethe dynamic library, the applet sample debugging the dynamic library andthe document of the dynamic library, and issue the three filessimultaneously. Here, the dynamic library is the content developed bythe developer and referenced by other applets. The applet sampledebugging the dynamic library may be reviewed by a reviewer, and usedfor debugging and preview by the applet developer using the dynamiclibrary. The document of the dynamic library may provide an API of thefeature provided by the dynamic library, to facilitate the access of thedeveloper.

It should be appreciated that the script, component, page and the likecommonly and frequently used in the development of the applet areencapsulated into the dynamic library, and uploaded to the appletplatform for other applets to reference. For a dynamic library that maybe referenced from the applet platform, the applet developer does notneed to redevelop, thereby reducing the workload of developing theapplet.

In some alternative implementations of this embodiment, the applet mayreference the dynamic library through the following steps:

First, the identifier of the dynamic library referenced by the applet isconfigured in the configuration file.

Here, for example, the code for configuring the identifier of thedynamic library referenced by the applet in the configuration file maybe:

app.json { “dynamicLib”:{ “myAliasA”:{ “provider”:“DynamicLibAAA” }“myAliasB”:{ “provider”:“DynamicLibBBB” } } }

Here, app.json is a configuration file, dynamicLib is a place fordeclaration of a dynamic library referenced by an applet, myAliasA andmyAliasB are aliases of dynamic libraries referenced by the applet, andDynamicLibAAA and DynamicLibBBB are names of the dynamic librariesreferenced by the applet.

Then, a use component of the dynamic library referenced by the applet isdeclared in the page file.

Here, for example, the code for declaring the use component of thedynamic library referenced by the applet in the page file may be:

xxxPage.json { “usingComponents”:{“my-component”:“dynamicLib://myAliasA/hello- component” } }

Here, xxxPage.json is a page file, usingComponents is the declaration ofthe use component in the page file, andmy-component:dynamicLib://myAliasA/hello-component is a declaration ofusing a hello-component page of a dynamic library having an aliasmyAliasA.

Next, a position and a related attribute of the dynamic libraryreferenced by the applet are specified in a layout file.

Here, for example, the code for specifying the position and the relatedattribute of the dynamic library referenced by the applet in the layoutfile may be:

xxxPage.swan <view> <my-component></my-component> </view>

Here, xxxPage.swan is a layout file, and <my-component></my-component>is a position referencing this dynamic library in xxxPage.swan.

Finally, the dynamic library referenced by the applet is called in ascript code of the applet.

Here, for example, the code for calling the dynamic library referencedby the applet in the script code of the applet may be:

xxxPage.js var lib=requireDynamicLib(‘myAliasA’);

Here, xxxPage.js is a script code of an applet, and varlib=requireDynamicLib(‘myAliasA’) is loading of the dynamic libraryhaving the alias myAliasA in the xxxPage.js code.

In some alternative implementations of the embodiment, the aboveexecuting body may perform signing and a security verification on theapplet. The above executing body only reads the configuration file afterthe signing and passing the security verification.

Step 202 includes loading the dynamic library referenced by the appletfrom a sandbox directory and/or an applet platform.

In the embodiment, for each dynamic library referenced by the applet,the above executing body may load the dynamic library from the sandboxdirectory or the applet platform. For example, if the latest version ofthe dynamic library issued on the applet platform is consistent with theversion of the dynamic library stored in the sandbox directory, theabove executing body may directly load the dynamic library from thesandbox directory. If the latest version of the dynamic library issuedon the applet platform is inconsistent with the version of the dynamiclibrary stored in the sandbox directory, the above executing body maydownload the latest version of the dynamic library from the appletplatform in real time, and load the latest version of the dynamiclibrary. In addition, the dynamic library of the downloaded latestversion is stored in the sandbox directory for a reference by the appletwhen the applet is run next time.

Generally, after the feature of the dynamic library is updated, theapplet referencing the dynamic library does not need to change thereference to the dynamic library in the configuration file, and does notneed to reissue the applet package. When the user opens the applet, theapplet platform is queried to determine whether the feature of thedynamic library is updated. If the feature is not updated, the dynamiclibrary in the sandbox directory is used. If the feature is updated, thedynamic library of the latest version is downloaded from the appletplatform to the sandbox directory, and the new feature of the dynamiclibrary can be presented when the applet is run.

It should be understood that the code of the dynamic library referencedby the applet is not integrated into the applet package when the appletis packaged, but downloaded to the sandbox directory when in use, andthe code and the storage directory of the applet are stored in parallel,but isolated from each other in term of codes. In this way, theadvantages at least include: 1) isolation: the storages of the code ofthe applet and the code of the dynamic library are isolated, preventingthe developer from modifying the code of the dynamic library or leakingthe core implementation of the dynamic library, and there is only therelationship of calling the API between the applet and the dynamiclibrary, and thus, an interface implementation layer is not visible tothe user; 2) reuse: different applets may share the dynamic library inthe sandbox directory, and if two applets refer to a given dynamiclibrary, and one applet has downloaded the dynamic library of the latestversion when running, the other applet, when running, directly loads thedynamic library of the latest version from the sandbox directory withoutrepeatedly downloading the dynamic library, thus achieving the purposeof reuse; and 3) security: the dynamic library is stored in the sandboxdirectory, which greatly reduces the risk of being cracked by the userand other competitors, and is more secure than the storage in a storagecard or the direct integration of the code into the applet package.

Step 203 includes running, in response to a running instruction of theapplet, a script code of the applet to call the dynamic libraryreferenced by the applet.

In the embodiment, when receiving the running instruction of the applet,the above executing body may run the script code of the applet to callthe dynamic library referenced by the applet, to use the featureprovided by the dynamic library. Here, when any page of the applet isentered through a click, it may be considered that the runninginstruction of the applet is received. The pages of the applet mayinclude a master page and a slave page.

In some alternative implementations of the embodiment, the aboveexecuting body may pre-download and preload the dynamic library.Specifically, when a script code of a master page of the applet is run,the above executing body may determine the dynamic library referenced bya slave page of the applet and pre-download the dynamic libraryreferenced by the slave page from the applet platform. When jumping tothe slave page of the applet, the above executing body may transmit thepath of the sandbox directory to a front end, to cause the front end topreload the dynamic library referenced by the slave page from the path.Here, the applet framework Runtime (in a running state) provides acapability to pre-download the dynamic library. Generally, some dynamiclibraries are referenced on the slave page of the applet. After themaster page of the applet is open, the above executing body maydynamically call a pre-download capability: PreDownloadSwanPlugin, toperform batch download of the dynamic libraries referenced by the slavepage, so that the pages of the referenced dynamic libraries can beprepared in advance when jumping to the slave page. When jumping to theslave page, the above executing body may transmit the path of thesandbox directory to the front end when the page preparation event ofthe slave page is generated, and the front end frame may preload thecode of the dynamic library under the path, and thus can execute thecorresponding script logic when the slave page is rendered.

According to the method for running an applet provide in the embodimentof the present disclosure, first, the configuration file is read todetermine the dynamic library referenced by the applet, in response toissuing the applet to the host application. Then, the dynamic libraryreferenced by the applet is loaded from the sandbox directory and/or theapplet platform. Finally, the script code of the applet is run to callthe dynamic library referenced by the applet, in response to the runninginstruction of the applet. When the applet is run, the dynamic libraryreferenced by the applet is loaded from the sandbox directory and/or theapplet platform, and the dynamic library is no longer integrated intothe applet package. Even if features are added to the dynamic libraryreferenced by the applet, it is not necessary to integrate the dynamiclibrary of the latest version into the applet package. Since the code ofthe applet package does not change, it is not necessary to review theapplet package again, thus greatly improving the convergence rate. Inaddition, the dynamic library is no longer integrated into the appletpackage, and is also isolated from the applet package in term of codes,thereby preventing the developer from modifying the code of the dynamiclibrary or leaking the core implementation of the dynamic library.

Further referring to FIG. 3 , FIG. 3 illustrates a flow 300 of a methodfor running an applet according to another embodiment of the presentdisclosure. The method for running an applet includes the followingsteps.

Step 301 includes reading, in response to issuing an applet to a hostapplication, a configuration file to determine a dynamic libraryreferenced by the applet.

In the embodiment, the specific operation of step 301 is described indetail in step 201 in the embodiment shown in FIG. 2 , which will not berepeatedly described here.

Step 302 includes determining, for each dynamic library referenced bythe applet, whether the dynamic library is stored in a sandboxdirectory.

In the embodiment, for each dynamic library referenced by the applet, anexecuting body (e.g., the device 101 shown in FIG. 1 ) of the method forrunning an applet may query the sandbox directory to determine whetherthe dynamic library is stored in the sandbox directory. If the dynamiclibrary is stored in the sandbox directory, step 303 is performed. Ifthe dynamic library is not stored in the sandbox directory, step 304 isperformed.

Step 303 includes determining whether a download duration of the dynamiclibrary exceeds an expiration period.

In the embodiment, if the sandbox directory stores the dynamic library,the above executing body may determine whether the download duration ofthe dynamic library exceeds the expiration time. If the downloadduration exceeds the expiration time, step 304 is performed. If thedownload duration does not exceed the expiration time, step 305 isperformed. Here, the expiration period may be maxAge, typically 1 hour.

Step 304 includes downloading synchronously a dynamic library of alatest version from an applet platform, and loading the dynamic libraryof the latest version.

In the embodiment, if the dynamic library is not stored, or the downloadduration of the stored dynamic library exceeds the expiration period,the above executing body may download the dynamic library of the latestversion from the applet platform synchronously, and load the dynamiclibrary of the latest version. Here, the synchronistic download may be areal-time download. For example, as long as it is determined that thedynamic library is not stored, or the download duration of the storeddynamic library exceeds the expiration period, a communication betweenthe above executing body and the applet platform is establishedimmediately, and the dynamic library of the latest version is downloadedin real time from the applet platform.

Generally, after an applet references a dynamic library, when a userfirst opens the applet, if the framework Runtime detects that thesandbox directory does not have a dynamic library of any version, adynamic library of a latest version is synchronously downloaded to thesandbox directory, and the information (e.g., the expiration period andthe version) of the dynamic library is stored in a database. Inaddition, when a cold start of the applet is performed again, if aperiod since the last time the dynamic library is downloaded exceeds theexpiration period, it indicates that the dynamic library in the sandboxdirectory is invalid. The dynamic library of the latest version issynchronously downloaded to the sandbox directory again, and theinformation (e.g., the expiration period and the version) of the dynamiclibrary is stored in the database.

In some alternative implementations of the embodiment, the downloadeddynamic library of the latest version may be stored in the sandboxdirectory, and a timeout time and version information of the dynamiclibrary may be stored in a database. Different applets may share thedynamic library in the sandbox directory. That is, the dynamic librarymay be reused. For example, if two applets reference a given dynamiclibrary, and one applet has downloaded the dynamic library of the latestversion when running, the other applet, when running, directly loads thedynamic library of the latest version from the sandbox directory withoutrepeatedly downloading the dynamic library, thus achieving the purposeof reuse.

Step 305 includes loading the dynamic library stored in the sandboxdirectory.

In the embodiment, if the download duration does not exceed theexpiration period, the above executing body may load the dynamic librarystored in the sandbox directory. In addition, if the download durationexceeds the expiration period but the dynamic library of the latestversion fails to be downloaded, the above executing body may also loadthe dynamic library stored in the sandbox directory. For example, if theapplet platform does not issue a version that is different from that ofthe dynamic library stored in the sandbox directory, it indicates thatthe dynamic library stored in the sandbox directory is the dynamiclibrary of the latest version. In this case, the dynamic library is notdownloaded from the applet platform even if the downloaded durationexceeds the expiration period.

Generally, when a cold start of the applet is performed again, if theperiod since the last time the dynamic library is downloaded does notexceed the expiration period, it indicates that the dynamic library inthe sandbox directory is valid. Thus, the dynamic library of the latestversion is not downloaded, and the dynamic library of the latest versionin the sandbox directory is directly used. In addition, when the coldstart of the applet is performed again, if the period since the lasttime the dynamic library is downloaded exceeds the expiration period butthe applet platform does not have a dynamic library of an updatedversion, it indicates that the dynamic library stored in the sandboxdirectory is the dynamic library of the latest version. Thus, thedynamic library of the latest version in the sandbox directory isdirectly used.

In some alternative implementations of the embodiment, if the downloadduration does not exceed the expiration period and there is the dynamiclibrary of the latest version on the applet platform, the aboveexecuting body may asynchronously download the dynamic library of thelatest version. The downloaded dynamic library of the latest version maybe stored in the sandbox directory for use the next time the appletruns. Here, the asynchronous download may be a non-real-time download.For example, if it is determined that the stored download duration ofthe dynamic library does not exceed the expiration period, after therunning of the applet is finished this time, a communication between theabove executing body and the applet platform may be established and thedynamic library of the latest version is downloaded from the appletplatform.

Step 306 includes running, in response to a running instruction of theapplet, a script code of the applet to call the dynamic libraryreferenced by the applet.

In the embodiment, the specific operation of step 306 is described indetail in step 203 in the embodiment shown in FIG. 2 , which will not berepeatedly described here.

Further referring to FIG. 4 , FIG. 4 is a diagram of an architecture inwhich an applet runs. As shown in FIG. 4 , if a developer wants to issuea dynamic library A and a dynamic library B, the names and the aliasesof the dynamic library A and the dynamic library B need to be registeredon an applet platform. Here, the name of the dynamic library A isDynamicLibAAA, and the alias is myAliasA. The name of the dynamiclibrary B is DynamicLibBBB, and the alias is myAliasB. The developer mayuse a development tool IDE provided by the applet platform to developscripts, components and pages, compile and package them into the dynamiclibrary A and a dynamic library B, and issue the dynamic library A andthe dynamic library B on the B end of the applet platform. If an appletA and a mini game A want to reference the dynamic library A and thedynamic library B, the names and the aliases of the dynamic library Aand the dynamic library B need to be configured in a configuration fileapp.json. In a page file Page.json, use components of the dynamiclibrary A and the dynamic library B are declared. The positions andrelated attributes of the dynamic library A and the dynamic library Bare specified in the layout file Page.swan. The dynamic library A andthe dynamic library B are called in the script codes of the applet A andthe mini game A to be compiled and packaged into an applet package A anda mini game package A, and issued on the end B of the applet platform.The applet A, an applet B, the mini game A and a mini game B may beissued to a host application. If the applet A and the mini game A needto be run, it is necessary to analyze the configuration file todetermine that the applet A and the mini game A depend on the dynamiclibrary A and the dynamic library B. Whether the latest versions of thedynamic library A and the dynamic library B are stored in the sandboxdirectory is determined. If the latest versions are not stored, thedynamic library A of the latest version and the dynamic library B of thelatest version are downloaded from end C of the applet platform. When auser wants to run the applet A or the mini game B, the applet package Aor the mini game package A is downloaded from the applet platform, andscript codes are run to call the dynamic library A and the dynamiclibrary B.

It may be seen from FIG. 3 that, as compared with the embodimentcorresponding to FIG. 2 , the flow 300 of the method for running anapplet in the embodiment emphasizes the step of loading the dynamiclibrary. Therefore, according to the scheme described in the embodiment,when the applet is run, whether to synchronously download the dynamiclibrary of the latest version is determined by determining whether thedownload duration of the dynamic library exceeds the expiration period.Thus, the convergence rate of the dynamic library is ensured, andexcessive pressure on the applet platform will not be caused since thedynamic library is not frequently downloaded.

Further referring to FIG. 5 , as an implementation of the method shownin the above drawings, the present disclosure provides an embodiment ofan apparatus for running an applet. The embodiment of the apparatuscorresponds to the embodiment of the method shown in FIG. 2 , and theapparatus may be applied in various electronic devices.

As shown in FIG. 5 , the apparatus 500 for running an applet in thisembodiment may include a reading unit 501, a loading unit 502 and arunning unit 503. Here, the reading unit 501 is configured to read, inresponse to issuing an applet to a host application, a configurationfile to determine a dynamic library referenced by the applet. Theloading unit 502 is configured to load the dynamic library referenced bythe applet from a sandbox directory and/or an applet platform. Therunning unit 503 is configured to run, in response to a runninginstruction of the applet, a script code of the applet to call thedynamic library referenced by the applet.

In the embodiment, for specific processes of the reading unit 501, theloading unit 502 and the running unit 503 in the apparatus 500 forrunning an applet, and their technical effects, reference may be maderespectively to the relative descriptions of steps 201-203 in thecorresponding embodiment of FIG. 2 , which will not be repeatedlydescribed here.

In some alternative implementations of this embodiment, the apparatus500 for running an applet further includes a verifying unit (not shownin the drawing), configured to perform signing and a securityverification on the applet.

In some alternative implementations of this embodiment, the loading unit502 includes: a first determining subunit (not shown in the drawing),configured to determine, for each dynamic library referenced by theapplet, whether the dynamic library is stored in the sandbox directory;and a first loading subunit (not shown in the drawing), configured tosynchronously download a dynamic library of a latest version from theapplet platform and load the dynamic library of the latest version, ifthe dynamic library is not stored.

In some alternative implementations of this embodiment, the loading unit502 includes: a second determining subunit (not shown in the drawing),configured to determine whether a download duration of the dynamiclibrary exceeds an expiration period, if the sandbox directory storesthe dynamic library; and a second loading subunit (not shown in thedrawing), configured to synchronously download the dynamic library ofthe latest version from the applet platform and load the dynamic libraryof the latest version, if the download duration exceeds the expirationperiod.

In some alternative implementations of this embodiment, the loading unit502 includes: a third loading subunit (not shown in the drawing),configured to load the dynamic library stored in the sandbox directory,if the download duration does not exceed the expiration period, or ifthe download duration exceeds the expiration period but the dynamiclibrary of the latest version fails to be downloaded.

In some alternative implementations of this embodiment, the loading unit502 further includes: an asynchronously downloading subunit (not shownin the drawing), configured to asynchronously download the dynamiclibrary of the latest version, if the download duration does not exceedthe expiration period and the dynamic library of the latest version isincluded in the applet platform.

In some alternative implementations of the embodiment, the downloadeddynamic library of the latest version is stored into the sandboxdirectory, a timeout time and version information of the dynamic libraryare stored into a database, and different applets share the dynamiclibrary in the sandbox directory.

In some alternative implementations of this embodiment, the apparatus500 for running an applet further includes: a pre-downloading unit (notshown in the drawing), configured to determine, when a script code of amaster page of the applet is run, a dynamic library referenced by aslave page of the applet, and pre-download the dynamic libraryreferenced by the slave page from the applet platform.

In some alternative implementations of the embodiment, the apparatus 500for running an applet further includes: a preloading unit (not shown inthe drawing), configured to transmit, when jumping to the slave page ofthe applet, a path of the sandbox directory to a front end to cause thefront end to preload the dynamic library referenced by the slave pagefrom the path.

In some alternative implementations of the embodiment, the dynamiclibrary is issued by: acquiring an identifier of the dynamic libraryregistered by a user on the applet platform; acquiring a script, acomponent and a page developed by the user using a development toolprovided by the applet platform; encapsulating, if the script, thecomponent and the page are successfully compiled and debugged, thescript, the component and the page to obtain the dynamic library; andissuing simultaneously the dynamic library, an applet sample debuggingthe dynamic library and a document of the dynamic library.

In some alternative implementations of the embodiment, the appletreferences the dynamic library by: configuring the identifier of thedynamic library referenced by the applet in the configuration file;declaring a use component of the dynamic library referenced by theapplet in a page file; specifying a position and a related attribute ofthe dynamic library referenced by the applet in a layout file; andcalling the dynamic library referenced by the applet in the script codeof the applet.

Referring to FIG. 6 , FIG. 6 is a schematic structural diagram of acomputer system 600 adapted to implement an electronic device (e.g., thedevice 101 shown in FIG. 1 ) of the embodiments of the presentdisclosure. The electronic device shown in FIG. 6 is merely an example,and should not bring any limitations to the functions and the scope ofuse of the embodiments of the present disclosure.

As shown in FIG. 6 , the computer system 600 includes a centralprocessing unit (CPU) 601, which may execute various appropriate actionsand processes in accordance with a program stored in a read-only memory(ROM) 602 or a program loaded into a random access memory (RAM) 603 froma storage portion 608. The RAM 603 also stores various programs and datarequired by operations of the system 600. The CPU 601, the ROM 602 andthe RAM 603 are connected to each other through a bus 604. Aninput/output (I/O) interface 605 is also connected to the bus 604.

The following components are connected to the I/O interface 605: aninput portion 606 including a keyboard, a mouse, etc.; an output portion607 including a cathode ray tube (CRT), a liquid crystal display (LCD),a speaker, etc.; the storage portion 608 including a hard disk, etc.;and a communication portion 609 including a network interface card suchas a LAN card and a modem. The communication portion 609 performscommunication processes via a network such as the Internet. A driver 610is also connected to the I/O interface 605 as required. A removablemedium 611 such as a magnetic disk, an optical disk, a magneto-opticaldisk, and a semiconductor memory may be installed on the driver 610, tofacilitate the retrieval of a computer program from the removable medium611, and the installation thereof on the storage portion 608 as needed.

In particular, according to embodiments of the present disclosure, theprocess described above with reference to the flow chart may beimplemented as a computer software program. For example, an embodimentof the present disclosure includes a computer program product, includinga computer program hosted on a computer readable medium, the computerprogram including program codes for performing the method as illustratedin the flowchart. In such an embodiment, the computer program may bedownloaded and installed from a network via the communication portion609, and/or may be installed from the removable medium 611. The computerprogram, when executed by the central processing unit (CPU) 601,implements the above mentioned functionalities defined in the method ofthe present disclosure.

It should be noted that the computer readable medium in the presentdisclosure may be a computer readable signal medium, a computer readablestorage medium, or any combination of the two. For example, the computerreadable storage medium may be, but not limited to: an electronic,magnetic, optical, electromagnetic, infrared, or semiconductor system,apparatus or device, or any combination of the above. A more specificexample of the computer readable storage medium may include, but notlimited to: an electrical connection having one or more wires, aportable computer disk, a hard disk, a random access memory (RAM), aread only memory (ROM), an erasable programmable read only memory (EPROMor flash memory), a fibre, a portable compact disk read only memory(CD-ROM), an optical storage device, a magnet storage device or anysuitable combination of the above. In the present disclosure, thecomputer readable storage medium may be any physical medium containingor storing programs, which may be used by a command execution system,apparatus or device or incorporated thereto. In the present disclosure,the computer readable signal medium may include a data signal that ispropagated in a baseband or as a part of a carrier wave, which carriescomputer readable program codes. Such propagated data signal may be invarious forms, including, but not limited to, an electromagnetic signal,an optical signal, or any suitable combination of the above. Thecomputer readable signal medium may also be any computer readable mediumother than the computer readable storage medium. The computer readablemedium is capable of transmitting, propagating or transferring programsfor use by, or used in combination with, a command execution system,apparatus or device. The program codes contained on the computerreadable medium may be transmitted with any suitable medium including,but not limited to, wireless, wired, optical cable, RF medium, or anysuitable combination of the above.

A computer program code for executing operations in the disclosure maybe compiled using one or more programming languages or combinationsthereof. The programming languages include object-oriented programminglanguages, such as Java, Smalltalk or C++, and also include conventionalprocedural programming languages, such as “C” language or similarprogramming languages. The program code may be completely executed on auser's computer, partially executed on a user's computer, executed as aseparate software package, partially executed on a user's computer andpartially executed on a remote computer, or completely executed on aremote computer or server. In the circumstance involving a remotecomputer, the remote computer may be connected to a user's computerthrough any network, including local area network (LAN) or wide areanetwork (WAN), or may be connected to an external computer (for example,connected through Internet using an Internet service provider).

The flow charts and block diagrams in the accompanying drawingsillustrate architectures, functions and operations that may beimplemented according to the systems, methods and computer programproducts of the various embodiments of the present disclosure. In thisregard, each of the blocks in the flow charts or block diagrams mayrepresent a module, a program segment, or a code portion, said module,program segment, or code portion including one or more executableinstructions for implementing specified logic functions. It should alsobe noted that, in some alternative implementations, the functionsdenoted by the blocks may occur in a sequence different from thesequences shown in the figures. For example, any two blocks presented insuccession may be executed, substantially in parallel, or they maysometimes be in a reverse sequence, depending on the function involved.It should also be noted that each block in the block diagrams and/orflow charts as well as a combination of blocks may be implemented usinga dedicated hardware-based system executing specified functions oroperations, or by a combination of a dedicated hardware and computerinstructions.

The units involved in the embodiments of the present disclosure may beimplemented by means of software or hardware. The described units mayalso be provided in a processor. For example, the processor may bedescribed as: a processor including a reading unit, a loading unit and arunning unit. Here, the names of these units do not in some casesconstitute a limitation to such units themselves. For example, thereading unit may alternatively be described as “a unit for reading, inresponse to issuing an applet to a host application, a configurationfile to determine a dynamic library referenced by the applet.”

In another aspect, the present disclosure further provides a computerreadable medium. The computer readable medium may be the computerreadable medium included in the electronic device described in the aboveembodiments, or a stand-alone computer readable medium not assembledinto the electronic device. The computer readable medium carries one ormore programs. The one or more programs, when executed by the electronicdevice, cause the electronic device to: read, in response to issuing anapplet to a host application, a configuration file to determine adynamic library referenced by the applet; load the dynamic libraryreferenced by the applet from a sandbox directory and/or an appletplatform; and run, in response to a running instruction of the applet, ascript code of the applet to call the dynamic library referenced by theapplet.

The above description only provides an explanation of the preferredembodiments of the present disclosure and the technical principles used.It should be appreciated by those skilled in the art that the inventivescope of the present disclosure is not limited to the technicalsolutions formed by the particular combinations of the above-describedtechnical features. The inventive scope should also cover othertechnical solutions formed by any combinations of the above-describedtechnical features or equivalent features thereof without departing fromthe concept of the disclosure. Technical schemes formed by theabove-described features being interchanged with, but not limited to,technical features with similar functions disclosed in the presentdisclosure are examples.

What is claimed is:
 1. A method for running an applet, comprising:reading, in response to issuing an applet to a host application, aconfiguration file to determine a dynamic library referenced by theapplet; loading the dynamic library referenced by the applet from asandbox directory and/or an applet platform; and running, in response toa running instruction of the applet, a script code of the applet to callthe dynamic library referenced by the applet, wherein the method isperformed by a hardware processor, and wherein the loading the dynamiclibrary referenced by the applet from a sandbox directory and/or anapplet platform comprises: determining, for each dynamic libraryreferenced by the applet, whether the dynamic library is stored in thesandbox directory; determining whether a download duration of thedynamic library exceeds an expiration period, if the sandbox directorystores the dynamic library; and downloading synchronously a dynamiclibrary of the latest version from the applet platform and loading thedynamic library of the latest version, if the download duration exceedsthe expiration period.
 2. The method according to claim 1, whereinbefore the configuration file is read to determine the dynamic libraryreferenced by the applet, the method further comprises: performing asigning and a security verification on the applet.
 3. The methodaccording to claim 1, wherein the loading the dynamic library referencedby the applet from a sandbox directory and/or an applet platform furthercomprises: downloading synchronously the dynamic library of a latestversion from the applet platform and loading the dynamic library of thelatest version, if the dynamic library is not stored.
 4. The methodaccording to claim 1 wherein the loading the dynamic library referencedby the applet from a sandbox directory and/or an applet platform furthercomprises: loading the dynamic library stored in the sandbox directory,if the download duration does not exceed the expiration period, or ifthe download duration exceeds the expiration period but the dynamiclibrary of the latest version fails to be downloaded.
 5. The methodaccording to claim 4, wherein the loading the dynamic library referencedby the applet from a sandbox directory and/or an applet platform furthercomprises: downloading asynchronously the dynamic library of the latestversion, if the download duration does not exceed the expiration periodand the dynamic library of the latest version is included in the appletplatform.
 6. The method according to claim 3, wherein the downloadeddynamic library of the latest version is stored into the sandboxdirectory, a timeout time and version information of the dynamic libraryare stored into a database, and different applets share the dynamiclibrary in the sandbox directory.
 7. The method according to claim 1,further comprising: determining, when a script code of a master page ofthe applet is run, a dynamic library referenced by a slave page of theapplet, and pre-downloading the dynamic library referenced by the slavepage from the applet platform.
 8. The method according to claim 7,further comprising: transmitting, when jumping to the slave page of theapplet, a path of the sandbox directory to a front end, to cause thefront end to preload the dynamic library referenced by the page from thepath.
 9. The method according to claim 1, wherein the dynamic library isissued by: acquiring an identifier of the dynamic library registered bya user on the applet platform; acquiring a script, a component and apage developed by the user using a development tool provided by theapplet platform; encapsulating, if the script, the component and thepage are successfully compiled and debugged, the script, the componentand the page to obtain the dynamic library; and issuing simultaneouslythe dynamic library, an applet sample debugging the dynamic library anda document of the dynamic library.
 10. The method according to claim 9,wherein the applet references the dynamic library by: configuring theidentifier of the dynamic library referenced by the applet in theconfiguration file; declaring a use component of the dynamic libraryreferenced by the applet in a page file; specifying a position and arelated attribute of the dynamic library referenced by the applet in alayout file; and calling the dynamic library referenced by the applet inthe script code of the applet.
 11. An apparatus for running an applet,comprising: at least one processor; and a memory storing instructions,wherein the instructions when executed by the at least one processor,cause the at least one processor to perform operations, the operationscomprising: reading, in response to issuing an applet to a hostapplication, a configuration file to determine a dynamic libraryreferenced by the applet; loading the dynamic library referenced by theapplet from a sandbox directory and/or an applet platform; and running,in response to a running instruction of the applet, a script code of theapplet to call the dynamic library referenced by the applet wherein theloading the dynamic library referenced by the applet from a sandboxdirectory and/or an applet platform comprises: determining, for eachdynamic library referenced by the applet, whether the dynamic library isstored in the sandbox directory; determining whether a download durationof the dynamic library exceeds an expiration period, if the sandboxdirectory stores the dynamic library; and downloading synchronously adynamic library of the latest version from the applet platform andloading the dynamic library of the latest version, if the downloadduration exceeds the expiration period.
 12. The apparatus according toclaim 11, wherein the loading the dynamic library referenced by theapplet from a sandbox directory and/or an applet platform furthercomprises: synchronously downloading the dynamic library of a latestversion from the applet platform and load the dynamic library of thelatest version, if the dynamic library is not stored.
 13. The apparatusaccording to claim 11, wherein the loading the dynamic libraryreferenced by the applet from a sandbox directory and/or an appletplatform further comprises: loading the dynamic library stored in thesandbox directory, if the download duration does not exceed theexpiration period, or if the download duration exceeds the expirationperiod but the dynamic library of the latest version fails to bedownloaded.
 14. The apparatus according to claim 13, wherein the loadingthe dynamic library referenced by the applet from a sandbox directoryand/or an applet platform further comprises: asynchronously downloadingthe dynamic library of the latest version, if the download duration doesnot exceed the expiration period and the dynamic library of the latestversion is included in the applet platform.
 15. The apparatus accordingto claim 12, wherein the downloaded dynamic library of the latestversion is stored into the sandbox directory, a timeout time and versioninformation of the dynamic library are stored into a database, anddifferent applets share the dynamic library in the sandbox directory.16. The apparatus according to claim 11, wherein the dynamic library isissued by: acquiring an identifier of the dynamic library registered bya user on the applet platform; acquiring a script, a component and apage developed by the user using a development tool provided by theapplet platform; encapsulating, if the script, the component and thepage are successfully compiled and debugged, the script, the componentand the page to obtain the dynamic library; and issuing simultaneouslythe dynamic library, an applet sample debugging the dynamic library anda document of the dynamic library.
 17. The apparatus according to claim16, wherein the applet references the dynamic library by: configuringthe identifier of the dynamic library referenced by the applet in theconfiguration file; declaring a use component of the dynamic libraryreferenced by the applet in a page file; specifying a position and arelated attribute of the dynamic library referenced by the applet in alayout file; and calling the dynamic library referenced by the applet inthe script code of the applet.
 18. A non-transitory computer readablemedium, storing a computer program, wherein the program, when executedby a processor, cause the processor to perform operations, theoperations comprising: reading, in response to issuing an applet to ahost application, a configuration file to determine a dynamic libraryreferenced by the applet; loading the dynamic library referenced by theapplet from a sandbox directory and/or an applet platform; and running,in response to a running instruction of the applet, a script code of theapplet to call the dynamic library referenced by the applet wherein theloading the dynamic library referenced by the applet from a sandboxdirectory and/or an applet platform comprises: determining, for eachdynamic library referenced by the applet, whether the dynamic library isstored in the sandbox directory; determining whether a download durationof the dynamic library exceeds an expiration period, if the sandboxdirectory stores the dynamic library; and downloading synchronously adynamic library of the latest version from the applet platform andloading the dynamic library of the latest version, if the downloadduration exceeds the expiration period.